37 Building construction services; repair services of equipment, facilities, and infrastructure, namely, buildings and industrial equipment in the fields of business management, business procurement, commercial and public road, rail, air, and sea transport, chemical processing, construction, defense, detention, education, emission reduction, energy production and distribution, industrial and commercial drilling, logistics, manufacturing, materials planning, medicine, mineral and gas exploration, mining, personnel and subcontractor management, project management, property and housing, recycling and waste management, safety and risk management, telecommunications, water treatment and distribution; installation services of equipment, namely, office equipment, heating equipment, ventilating equipment, air conditioning equipment, industrial equipment, security surveillance equipment in the fields of business management, business procurement, commercial and public road, rail, air, and sea transport, chemical processing, construction, defense, detention, education, emission reduction, energy production and distribution, industrial and commercial drilling, logistics, manufacturing, materials planning, medicine, mineral and gas exploration, mining, personnel and subcontractor management, project management, property and housing, recycling and waste management, safety and risk management, telecommunications, water treatment and distribution; maintenance, installation and repair of electric items and equipment and construction equipment; construction, installation, and maintenance of facilities and infrastructure, namely, buildings, environmental containment systems, industrial equipment, roads, railways and bridges for use in the fields of business management, business procurement, commercial and public road, rail, air, and sea transport, chemical processing, construction, defense, detention, education, emission reduction, energy production and distribution, industrial and commercial drilling, logistics, manufacturing, materials planning, medicine, mineral and gas exploration, mining, personnel and subcontractor management, project management, property and housing, recycling and waste management, safety and risk management, telecommunications, water treatment and distribution; mining extraction; building and construction project management services; drilling services, namely, drilling services for oil, gas, water, and minerals, namely, oil well drilling, water well drilling horizontal drilling, wireline diamond coring, reverse circulation drilling, air core drilling, air/mud rotary drilling, production drilling, water bore drilling, coal seam gas drilling, hydrogeological drilling, exploration drilling; underground construction of underground structures, namely, tunnels, mining facilities, and bunkers; real estate and real property development services including building, construction supervision, construction management, refurbishment and/or renovation services; property development project management services; cleaning services of structures and construction equipment, materials, buildings and vehicles; rental of construction and cleaning apparatus; provision of information relating to the aforesaid services; drilling of metals; housekeeping services, namely, cleaning of residential houses